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MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1 243
Table 1-1 GPSCard Pseudorange Differential Initialization Summary
Table 1-2 Latency-Induced Extrapolation Error
Table 2-1 Commands By Function Table
Reference Station Remote Station
Required:
FIX POSITION lat lon hgt id (health)
LOG port DATATYPE ontime 5
Recommended Options:
LOG DATATYPES (binary):
RTCMB
RTCAB
RTCM
RTCA
LOG DATATYPES (acii):
RTCMA
RTCAA
Related Commands/Logs:
RTCMRULE
DATUM
Required:
ACCEPT port DATATYPE
Recommended Options:
ACCEPT DATATYPES (binary):
RTCM
RTCA
ACCEPT COMMANDS (ascii):
RTCMA
RTCAA
Related Commands/Logs:
RTCMRULE
DATUM
POSA/B
VLHA/B
CDSA/B
GPGGA
Example 1:
fix position 51.3455323 -114.2895345 1201.123 555 0
log com 1 RTCM ontime 2
Example 2:
fix position 51.3455323 -114.2895345 1201.123 555 0
log com2 rtcaa ontime 2
Example 1:
accept com2 rtcm
log com1 posa ontime 1
Example 2:
accept com2 commands
log com1 posa ontime 0.2
log com1 vlha ontime 0.2
Note: Italicized entries indicate user definable.
Time since last reference station observation Typical extrapolation error (CEP)
0-2 seconds 1 cm/sec
2-7 seconds 2 cm/sec
7-30 seconds 5 cm/sec
COMMUNICATIONS, CONTROL AND STATUS
Commands Descriptions
ANTENNAPOWER Power to the low-noise amplifier of an active antenna
COMn COMn port configuration control
COMn_DTR DTR handshaking control
COMn_RTS RTS handshaking control
DIFF_PROTOCOL
1
Differential Protocol Control
FREQUENCY_OUT Variable frequency output (programmable)
LOG Logging control
MESSAGES Disable error reporting from command interpreter
RINEX Configure the user defined fields in the file header
RTCMRULE Sets up RTCM bit rule
RTCM16T Enters an ASCII message
SEND Sends ASCII message to COM port
SENDHEX Sends non-printable characters
SETL1OFFSET
1
Add an offset to the L1 pseudorange to compensate for
signal delays